Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 955 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.104 × 113 =
2. 2.12 × 7 =
3. 3.977 × 972 =
4. 4.101 × 97 =
5. 5.7 × 7 =
6. 6.99 × 85 =
7. 7.8 × 7 =
8. 8.989 × 970 =
9. 9.12 × 14 =
10. 10.1020 × 1023 =
11. 11.104 × 103 =
12. 12.107 × 98 =
13. 13.9 × 9 =
14. 14.9 × 6 =
15. 15.114 × 114 =
16. 16.1024 × 1032 =
17. 17.111 × 91 =
18. 18.85 × 95 =
19. 19.9 × 7 =
20. 20.92 × 90 =
21. 21.12 × 11 =
22. 22.12 × 12 =
23. 23.12 × 12 =
24. 24.102 × 96 =
25. 25.7 × 8 =
26. 26.106 × 106 =
27. 27.88 × 99 =
28. 28.93 × 90 =
29. 29.98 × 98 =
30. 30.89 × 93 =
31. 31.99 × 91 =
32. 32.14 × 14 =
33. 33.999 × 962 =
34. 34.109 × 101 =
35. 35.85 × 95 =
36. 36.1028 × 1032 =
37. 37.99 × 97 =
38. 38.86 × 98 =
39. 39.105 × 102 =
40. 40.102 × 96 =

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